With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdslVcClassMuxLinkType
Cisco Digital Subscriber Line Vc Class Multiplexor Link Type
1.3.6.1.4.1.9.10.30.1.5.2.1.10
This object is used to specify the link type if the encapsulation is aal5mux. 1 for IP and 2 for PPP.
Back to CISCO-DSL-PROVISION-MIB MIB page.
IPHost Network monitor allows you to monitor cdslVcClassMuxLinkType on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.